"The objective of the meeting was to share terror-related intelligence and inputs about various extremist outfits and their designs," a senior police official said.

The meeting came on a day when the national capital was put on alert after a bomb explosion in Bangalore.

At the meeting, the importance of surveillance over inter-state criminals involved in heinous offences, repeat offenders and gangs was emphasised.

Representatives of the state police forces shared lists of most wanted criminals and other related information about their respective areas, the official said, adding that they decided to take concerted action against active inter-state criminals for curbing crime in the National Capital Region.

Human trafficking, missing children and proliferation of fake Indian currency note (FICN) and arms smuggling were deliberated upon for necessary preventive measures. Integrated joint checking at unmanned borders in tandem with each other was stressed upon, the official said.

Traffic issues for regulating entry of commercial vehicles into Delhi were discussed. Removal of tinted films on vehicles entering Delhi with reference to women's safety issues in the NCR region was also deliberated upon.